Building clamp



lsfelnvt. "16:, 1927.

Tag '1 In ven qfor.'

D` J." M. Leck..

# for@ egs.

Patten-ted Sept. 6A,l 1927.

UNlTEDrsTATEs vIPAiENT OFFICE.

DARCY J. ivi. LEGK, F MINNEAPOLIS, MINNESOTA.

BUILDING CLAMP.

i Application iled July 17,

i used. An object in particular is to provideV a clamp for securing apiece of wood to ay post 1n such manner 'that the clamp may be "removedwhile leaving the post standing.

My device is adapted'especially .for use inl connection with staging orfalse `'work employed in the laying of cement floors.

The full objects and advantages of my invention will appear inconnection with the detailed description thereof, and the novel featuresof my inventiveL idea -will be particularly pointed out in the claim.

In the accompanyingidrawings which illustrate a practical embodiment ofmy invention,-

Fig. 1 is a view showing the clamp in ele.- vation and used inconnection with the vfalse work for a cement floor. Fig. 2 is a viewatright angles to Fig. l. Fig. 3 is aV plan view of the clamp.

Asshown in the drawings, the clamp consists of a substantially U-shapedmember havingtwo side arms 1() and 12 and a connecting end member 14.The free end'ot the arm 1() is bent to form a. hook 16 asbest shown inFig. 2 while the free end of the arm 12 is bent over to form an eye 18upon which is pivoted a bar'2() which forms a fourth sidev for theclamp. It will be apparent from Fig. y3 that one end ofthe bar 20 isprovided with af hole through which a portion of the eye 18 is passedbefore being en` tirely bent over. In order that` the inner edge ofthebar may extend straight across ywhen theclamp is in use, the outeredge'of the bar is cut away toward its free end as indicated at 22 forengaging the hook. This Y out away edge as will be apparent is adaptedto swing into contact with the curved portion of the hook.

about three weeks.

1926. Serial No. 123,129.

, The operation and advantages of my in- Ventron will vnow be obvious.Referring to Figs. -l and 2, a temporary floor F is partly supported .byposts P to which blocks .B are .secured by the clamps .any number ofwhich `may be employed according to the number of posts. These blockssupport horizonta'ls or-beams H which in turn support stringers .Sv Vonwhich the temporary iioor F rests. It.

will be noted fromrFig. 2 that the clamps when positioned `for useoccupy an inclined position and that the weight carried by the blockscause av binding or clamping action. In case the clamp does not biteinto the wood sufliciently for holding the parts firmly together, nailsN may be driven into the wood below the end member 14 and above thepivoted bar 20, thereby effectively ypreventing liability of the clampslipping. After the cement C has been poured, the blocks B, the beams Hand stringers S are soon thereafter removed vupon releasing the clamps.The

posts P are ordinarily left standing for The clamps can be readilyremoved from the posts for immediate re-use on account ofthe detachableengagement of the pivotedbar 20 with the hook 16. The provision of theeye 18 prevents the bar from becoming entirely detached and lost.

I claim:

A building clamp comprising a. U-shaped member having a hook at one endthereof and an eye at the other end thereof and a flat bar pivotallyconnected at one end with sa'id eye and detachably engaging said hook atthe other end, the outside edge of said bar being cut to reduced widthat the last mentioned end in order that the inside Ymargin of the barmay extend perpendicularly to the arms of the U-shaped member when theclamp is in use. n

'In testimony whereof I hereunto afHX my signature.

DARCY J. M. LECK.

